Concentrator.



J. A. WOLGOTT.

Patented Aug. 26, 1913.

Attorneys UNITED STATES PATENT oFmcE.

Joni: A. WOLCOTT, or BANDON, OREGON.

\ CONGENTRATOR.

Specification of Letters Patent.

Patented Aug. 26,1913.

Application filed December 16, 1912. Serial No. 737,067.

To all whom it may concern: Be it known that I, JOHN A. Wonoo'r'r, a citizen of the United States, residing at Bandon, in the county of Coos and State of cious metals from black sand and the like,

one object of the invention being the provision of a concentrating sluice way or trough mounted for transverse oscillatory movement and having disposed therein, a

, plurality ofindependently reciprocatory paddles, both the paddles and the trough being operated simultaneously so that the water containing the gangue and the precious metal will be continually agitated to cause the heavier particles to be precipitated for removal from the sluice way or trough.

A further object of the present invention is the provision of a novel mechanism whereby a plurality of longitudinally disposed and reciprocatory members carrying pivoted stirringpaddles will have the necessary reciprocatory movement imparted thereto. I

-lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed with out departing from the spirit of' the invention.

In the drawings--Figure1 is 'a side elevation of the complete device taken from the power side thereof. Fig. 2 is a longitudinal sectional view therethrough. Fig. 3 is a side elevation taken from the opposite side to the power mechanism. Fig. 4: is a section taken on line 44 of Fig. 3. Fig. 5

.is a detail view illustrating the paddle mounting.

'Referring to the drawings, the numeral 1 designatesthe base of the machine which has flconnected thereto, and upstanding therefrorfifthe two forward vertical posts 2 and the two rear vertical posts 2, while connected to the base adjacent the respective pairsof posts are the cross bars 33 respectively. Connected to the up er face of the bars 33' upon the power si e of the machine is a pair of journaling straps 4 for the reception of the lower terminals of the two trough or table supporting bails 5, the upper ends of said bails'being pivotally connected by straps 6 to the under side of the trough or table 7. This trough or table 7 is preferably made of sheet metal and has its bottom 7 formed as clearly shown in Fig. 2, the straps 5 forming a means to support the trough at one side and at the same time permit of the necessary and desirable transverse oscillatory movement between the vertical posts 2-2.

A shaft 8 is journaled in the straps 99 carried by the respective bars 3-3"and fixed to this shaft and upstanding therefrom are the two crank shafts 1010, each one of which is properly mounted Within the straps 1111 connected to the lower portion of the trough 7 at the opposite side to the straps 6. Thus the bails or arms 5 coact with the cranks 1010"to roperly support the trough 7 between the respective pairs of posts 2-2.

The shaft 8 is the medium through which the trough or table 7 is transversel oscillated between the pairs of posts an in order to accomplish this, a crank arm 12 is provided at one end of the shaft 9 andprojects outwardly beyond one-of the posts 2, its outer end being connected to the lower end of the strap 13, whose upper end is removably connected to the short crank arm 14 keyed upon and rotatable with the-shaft 15. This shaft 15 is journaled in the bracket 16 which is mounted upon the forward two posts 2 the shaft 15 being transversely of and below the trough 7. The driving sprocket 17 is keyed upon the shaft 15 at the opposite end to the crank :14 and has trained thereover, a sprocket chain l8, by means-of which the shaft 15 is rotated to impart the necessary oscillatory movement to the shaft 8. a 1

Connected to the forward portions near the upper ends of the posts 22, are the blocks 19 which carry, theib'rackets 20 for the reception of the transversely disposed shaft 21. ."Thisshaft 521 has keyed upon the end above the sprocket 17 ,alarge sprocket IQO, which. has trained' thereover, the

- all times,

sprocket chain 18, so that both shafts 21 and 15 may be rotated simultaneously and from the same power mechanism.

Disposed for longitudinal reciprocatory movement above the trough or table 7 are a plurality of stirring members 22, each one of which is provided with the longitudinal and parallel flanges or rims 23 and at their forward ends with the elongated slots 24, there being one slot 24 to each member 22. In order to properly support each stirring member 22 so that it may maintain the same relative position to, the posts 22 at an arm 25 having the securing end 26 attached to the upper surface of the stirring member between the posts 2, is provided, the free end of said arm being disposed for sliding movement upon the shaft 21. Thus the arm 25 and the shaft 21 provide a means for retaining one of the stirring members 22 properly positioned. Jonnected at 28 to each stirring member adjacent'to the two posts 2 is an arm 27, the free end of said arm being inserted through its respective eye 29 of the rod 30 which is fastened by means of the eye bolts 31 to the posts 2'. Thus the rod is properly positioned transversely of and above the trough or table 7 and with the shaft 21 and the respective arms 25 and 27 provide a means for properly supporting the reciprocatory stirring members 22 so that the swingingly mounted paddles 33 carried .by the respective stirring members 22 and jour nan-ad upon the pins 32 betweenthe flanges 23 thereof are properly positioned within tlr' trough or table so that as the trough is me ed transversely and the stirring members 22 are moved longitudinally, each one of their respectivepaddles 33 produces the necessary stirring motion to the contents of the trough toassistin the precipitation of the i heavier particles upon the bottom I and upon the inclined portion 36, where the heavier particles will enter and pass through the outlet'po'rts or apertures 37 at the closed end of the trough or table. These paddles V 33 are so disposed, as shown in Fig. 5, that when moved to the right as viewed in Fig, 2, that the resistance of the material and water within the trough will cause the same to move to the left to finally be limited in such movement to resist the material and stir the same, the movement of the members (22 t the left as viewed in Fig. 2, causing, the paddles to swing upwardly toward the stirring members 22 and reduce the stirring action, sothat the lighter particles will be gradually moved from the left to the right v as viewed in Fig. 2 and finally out of the open end of the trough or table.

In order that the shaft 21 may impart the necessary reciprocatory movement to the respective stirring members 22 and their paddles 33, a ring 34 provided with the {securmg apertured lug 35 is connected to the shaft 21 and is projected through the slot 24 of its respective member 22, and as said ring 34 s thusconnected eccentrically to the shaft 21, the rotation of the shaft will cause the ring '34 in its engagement with the walls of the slot 24 of the member 22w thus push and pull the member 22 and move the same longitudinally of the apparatus. The respective rings 34, there being three in the present instance are connected to the shaft 21, at diflerent angles, so that the members 22 are moved successivelyin different directions so as to continue the stirring ac: tion of the material within the trough or table and thus materially cipitation of the precious metal and its final delivery through the apertures 37. Asfthe arms 25 are preferably inadebail-shaped, and as the open port-ion thereof is vertic'ally above and alined with the slot 24,the,ring 34 not only fits in the slot 24 of the member 22 but also moves upward in theopenpor tion of the arm 25 and thus the arm 25 coacts with the aperture 24 in assisting the ring 34 to impart the necessary reciprocatory movement to the member 22.

What is claimed is: 1. A concentrator, including a base, two] pairs of uprights carried by the base adjacent the respective ends tliereof, a trough disposed betweensaid uprights, means for pivotally connecting and supporting the trough from the base between the uprights, means for actuating said supporting means to impart a transverse oscillatory movement to the troughptwo shafts, one mounted in each pair of uprights and above the trough,

a plurality of longitudinal stirring men'rbers, means carried by said membersand co actingwith the shafts for retarnlng' members above the trough and. permitting a. reciprocatory movement to the nie m-fl hers, and means mounted upon one.pair at the uprights for imparting a reciprocatory movement to the members,"

2. A concentrator, including a base, twd pairs of uprights carried the base,a trough mounted between said upr ghts for transverse oscillatory movement, a shaft] journaled in two of the uprights above and transversely of the trough, a 'rodconn'ected to the other two uprights and transversely, of and above thef'trough at the opposite end, a plurality of jstirring'members, two arms carried by each stirring member one to the shaft and one to the rod for, coaction therewith to support the stirring member above" the trough, and cooperable means carried by the shaft and the stirring member for 1m parting reciproeatory movement to the stirring shaft.

- 3. A concentrator, including a base, two

pairs of uprights carried by the base, a5

member during the rotation of the I trough mounted between said uprights and for transverse oscillatory movement, a shaft journaled in two of the uprights above and transversely of the trough, a rod connected to the other two uprights and transversely of and above the trough at the opposite end, a plurality of stirring members, two arms carried by each stirring member one to the shaft and one to the rod for coaction therewith to support the stirring member above the trough, the end of the stirring members adjacent to the shaft being slotted, and a plurality of eccentrics, one to each stirring member keyed upon and rotatable with the shaft and for projection within the slot of the stirring member, whereby the rotation of the shaft will impart a reciprocatory movement to the stirring members.

4:. A concentrator, including a base, two pairs of uprights carried by the base, a trough mounted between the uprights, a rod connected to one pair of uprights transversely of and above the trough, a shaft journaled in the other upright transversely of and above the trough, a plurality of longitudinally disposed reciprocatory plurality of swingingly mounted stirring members carried by each plate, two arms connected to each plate, one of said arms bein disposed to slide upon and be guided by t e rod while the other arm is mounted plates, a

upon the shaft, and cooperable means carried by the shaft and plates, whereby the rotation of the shaft imparts a reciprocatory movement to the plates.

5. A concentrator, including a base, two pairs of uprights carried by the base, a trough mounted between the uprights, a rod connected to one pair of uprights transversely of and above the trough, a shaft journaled in the other pair of uprights transversely of and above the trough, a plurality of longitudinally disposed reciprocatory plates, a plurality of swingingly mounted stirring members carried by each plate, two arms connected to each plate, one of said arms being disposed to slide upon and be guided by the rod while the other arm is mounted upon the shaft, and a plurality of rings connected eccentrically to the shaft, and engageable with the reciprocatory plates, whereby the rotation of the shaft imparts a reciprocatory movement to the plates.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

JOHN A. \VOLCOTT.

Vitnesses:

JosErH A. GARDNER, JAMES OHARE. 

